backported fixes from rtxon: BSP tree construction and mouse handling

[dosdemo] / src / sdl / main.c

diff --git a/src/sdl/main.c b/src/sdl/main.c
index 0abb3e3..358d774 100644 (file)
--- a/src/sdl/main.c
+++ b/src/sdl/main.c
@@ -3,22 +3,25 @@
 #include <limits.h>
 #include <SDL/SDL.h>
 #include "demo.h"
+#include "tinyfps.h"
+#include "timer.h"
+#include "cfgopt.h"
 
 static void handle_event(SDL_Event *ev);
+static void toggle_fullscreen(void);
 
 static int quit;
-static long start_time;
 static SDL_Surface *fbsurf;
 
 static int fbscale = 2;
 static int xsz, ysz;
+static unsigned int sdl_flags = SDL_SWSURFACE;
 
 int main(int argc, char **argv)
 {
        int s, i, j;
        char *env;
        unsigned short *sptr, *dptr;
-       unsigned int sdl_flags = SDL_SWSURFACE;
 
        if((env = getenv("FBSCALE")) && (s = atoi(env))) {
                fbscale = s;
@@ -28,12 +31,14 @@ int main(int argc, char **argv)
        xsz = fb_width * fbscale;
        ysz = fb_height * fbscale;
 
-       if(!(fb_pixels = malloc(fb_width * fb_height * fb_bpp / CHAR_BIT))) {
+       /* allocate 1 extra row as a guard band, until we fucking fix the rasterizer */
+       if(!(fb_pixels = malloc(fb_width * (fb_height + 1) * fb_bpp / CHAR_BIT))) {
                fprintf(stderr, "failed to allocate virtual framebuffer\n");
                return 1;
        }
+       vmem_front = vmem_back = fb_pixels;
 
-       SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER);
+       SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_NOPARACHUTE);
        if(!(fbsurf = SDL_SetVideoMode(xsz, ysz, fb_bpp, sdl_flags))) {
                fprintf(stderr, "failed to set video mode %dx%d %dbpp\n", fb_width, fb_height, fb_bpp);
                free(fb_pixels);
@@ -48,7 +53,7 @@ int main(int argc, char **argv)
                SDL_Quit();
                return 1;
        }
-       start_time = SDL_GetTicks();
+       reset_timer();
 
        while(!quit) {
                SDL_Event ev;
@@ -57,15 +62,16 @@ int main(int argc, char **argv)
                        if(quit) goto break_evloop;
                }
 
-               time_msec = SDL_GetTicks() - start_time;
+               time_msec = get_msec();
                demo_draw();
+               drawFps(fb_pixels);
 
                if(SDL_MUSTLOCK(fbsurf)) {
                        SDL_LockSurface(fbsurf);
                }
 
                sptr = fb_pixels;
-               dptr = fbsurf->pixels;
+               dptr = (unsigned short*)fbsurf->pixels + (fbsurf->w - xsz) / 2;
                for(i=0; i<fb_height; i++) {
                        for(j=0; j<fb_width; j++) {
                                int x, y;
@@ -73,12 +79,12 @@ int main(int argc, char **argv)
 
                                for(y=0; y<fbscale; y++) {
                                        for(x=0; x<fbscale; x++) {
-                                               dptr[y * xsz + x] = pixel;
+                                               dptr[y * fbsurf->w + x] = pixel;
                                        }
                                }
                                dptr += fbscale;
                        }
-                       dptr += xsz * (fbscale - 1);
+                       dptr += (fbsurf->w - fb_width) * fbscale;
                }
 
                if(SDL_MUSTLOCK(fbsurf)) {
@@ -98,6 +104,36 @@ void demo_quit(void)
        quit = 1;
 }
 
+void wait_vsync(void)
+{
+       unsigned long start = SDL_GetTicks();
+       unsigned long until = (start | 0xf) + 1;
+       while(SDL_GetTicks() <= until);
+}
+
+void swap_buffers(void *pixels)
+{
+       /* do nothing, all pointers point to the same buffer */
+       if(opt.vsync) {
+               wait_vsync();
+       }
+}
+
+static int bnmask(int sdlbn)
+{
+       switch(sdlbn) {
+       case SDL_BUTTON_LEFT:
+               return MOUSE_LEFT;
+       case SDL_BUTTON_RIGHT:
+               return MOUSE_RIGHT;
+       case SDL_BUTTON_MIDDLE:
+               return MOUSE_MIDDLE;
+       default:
+               break;
+       }
+       return 0;
+}
+
 static void handle_event(SDL_Event *ev)
 {
        switch(ev->type) {
@@ -107,10 +143,44 @@ static void handle_event(SDL_Event *ev)
 
        case SDL_KEYDOWN:
        case SDL_KEYUP:
+               if(ev->key.keysym.sym == SDLK_RETURN && (SDL_GetModState() & KMOD_ALT) &&
+                               ev->key.state == SDL_PRESSED) {
+                       toggle_fullscreen();
+                       break;
+               }
                demo_keyboard(ev->key.keysym.sym, ev->key.state == SDL_PRESSED ? 1 : 0);
                break;
 
+       case SDL_MOUSEMOTION:
+               mouse_x = ev->motion.x / fbscale;
+               mouse_y = ev->motion.y / fbscale;
+               break;
+
+       case SDL_MOUSEBUTTONDOWN:
+               mouse_bmask |= bnmask(ev->button.button);
+               if(0) {
+       case SDL_MOUSEBUTTONUP:
+                       mouse_bmask &= ~bnmask(ev->button.button);
+               }
+               mouse_x = ev->button.x / fbscale;
+               mouse_y = ev->button.y / fbscale;
+               break;
+
        default:
                break;
        }
 }
+
+static void toggle_fullscreen(void)
+{
+       SDL_Surface *newsurf;
+       unsigned int newflags = sdl_flags ^ SDL_FULLSCREEN;
+
+       if(!(newsurf = SDL_SetVideoMode(xsz, ysz, fb_bpp, newflags))) {
+               fprintf(stderr, "failed to go %s\n", newflags & SDL_FULLSCREEN ? "fullscreen" : "windowed");
+               return;
+       }
+
+       fbsurf = newsurf;
+       sdl_flags = newflags;
+}